
Treatment of hydraulic fracturing flowback water components with O3 and O3/H2O2
In this study ozone (O3) and ozone with hydrogen peroxide advanced oxidation (O3/H2O2) were used to treat typical constituents of hydraulic fracturing wastewater. The water contained guar gum (GG, a thickening agent) and glutaraldehyde (GLU, biocide). Both treatment processes were successful in improving biodegradability of the components as expressed by the BOD/COD biodegradability ratio.